CVE-2021-30966
First published: Tue Aug 24 2021(Updated: )
A logic issue was addressed with improved state management. This issue is fixed in macOS Monterey 12.1, watchOS 8.3, iOS 15.2 and iPadOS 15.2, tvOS 15.2. User traffic might unexpectedly be leaked to a proxy server despite PAC configurations.
Credit: Michal Rajcan JamfMatt Vlasach Jamf cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Apple macOS Monterey | <12.1 | 12.1 |
| tvOS | <15.2 | 15.2 |
| Apple iOS, iPadOS, and watchOS | <15.2 | 15.2 |
| Apple iOS, iPadOS, and watchOS | <15.2 | 15.2 |
| Apple iOS, iPadOS, and watchOS | <8.3 | 8.3 |
| Apple iOS, iPadOS, and watchOS | <15.2 | |
| iStyle @cosme iPhone OS | <15.2 | |
| Apple iOS and macOS | <12.1 | |
| tvOS | <15.2 | |
| Apple iOS, iPadOS, and watchOS | <8.3 |
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Reference Links
- https://support.apple.com/en-us/HT212975 (Advisory)
- https://support.apple.com/en-us/HT212976 (Advisory)
- https://support.apple.com/en-us/HT212978 (Advisory)
- https://support.apple.com/en-us/HT212980 (Advisory)
Peer vulnerabilities
(Found alongside the following vulnerabilities)
- CVE-2021-30987
- CVE-2021-30950
- CVE-2021-30960
- CVE-2021-30986
- CVE-2021-30966
- CVE-2021-30926
- CVE-2021-30942
- CVE-2021-30957
- CVE-2021-30958
- CVE-2021-30935
- CVE-2021-30945
- CVE-2021-31007
- CVE-2021-31013
- CVE-2021-31000
- CVE-2021-30977
- CVE-2021-30939
- CVE-2021-30981
- CVE-2021-30996
- CVE-2021-30982
- CVE-2021-30937
- CVE-2021-30927
- CVE-2021-30980
- CVE-2021-30949
- CVE-2021-30993
- CVE-2021-30955
- CVE-2021-30976
- CVE-2021-30990
- CVE-2021-30943
- CVE-2021-31009
- CVE-2021-30971
- CVE-2021-30973
- CVE-2021-30929
- CVE-2021-30979
- CVE-2021-30940
- CVE-2021-30941
- CVE-2021-30995
- CVE-2021-30968
- CVE-2021-30946
- CVE-2021-30947
- CVE-2021-30975
- CVE-2021-30944
- CVE-2021-30972
- CVE-2021-30767
- CVE-2021-30964
- CVE-2021-30970
- CVE-2021-30965
- CVE-2021-30934
- CVE-2021-30936
- CVE-2021-30951
- CVE-2021-30952
- CVE-2021-30984
- CVE-2021-30953
- CVE-2021-30954
- CVE-2021-30938
- CVE-2021-30962
- CVE-2021-30916
- CVE-2021-30956
- CVE-2021-30992
- CVE-2021-30983
- CVE-2021-30985
- CVE-2021-30991
- CVE-2021-30998
- CVE-2021-30997
- CVE-2021-30967
- CVE-2021-30988
- CVE-2021-30932
- CVE-2021-30948
Frequently Asked Questions
What is CVE-2021-30966?
CVE-2021-30966 is a vulnerability in CFNetwork Proxies that allows user traffic to be leaked to a proxy server despite PAC configurations.
What is the severity of CVE-2021-30966?
The severity of CVE-2021-30966 is high, with a severity value of 7.5.
Which software versions are affected by CVE-2021-30966?
CVE-2021-30966 affects macOS Monterey 12.1, watchOS 8.3, iOS 15.2, iPadOS 15.2, and tvOS 15.2.
What is the fix for CVE-2021-30966?
CVE-2021-30966 is fixed in macOS Monterey 12.1, watchOS 8.3, iOS 15.2, iPadOS 15.2, and tvOS 15.2.
Where can I find more information about CVE-2021-30966?
More information about CVE-2021-30966 can be found at the following references: [link1], [link2], [link3].
- collector/apple-support
- agent/references
- agent/type
- agent/severity
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/event
- agent/first-publish-date
- agent/trending
- agent/source
- agent/software-canonical-lookup-request
- agent/author
- agent/softwarecombine
- agent/tags
- collector/nvd-api
- collector/nvd-index
- vendor/apple
- canonical/apple macos monterey
- canonical/tvos
- canonical/apple ios, ipados, and watchos
- canonical/istyle @cosme iphone os
- canonical/apple ios and macos